Gauge for paper-cutting machines



Mrch 25 1930. v c, o, THORNE 1,752,126

GAUGE FOR PAPER CUTTING MACHINES Filled July 2, 1928 2 Sheets-Sheet 2UUDQQDUUBDC INVENTOR 0/0/"6/2 C6 0. Thor/2e a: v I {2 A TTORNE Y6Patented Mar. 25, 1930 PATENT OFFICE CLARENCE O. THOR-NE, OF WATERVLIET,MICHIGAN GAUGE FOR PAPER-CUTTING MACHINES Application filed July 2, 18:

The main object of this invention is to provide in a paper cutter animproved means for squaring the sheets so that they may be accuratelyout, which is simple and economical 5 in structure and at the same timeis capable of handling heavy bodies of sheets.

Objects pertaining to details and economies of my invention willdefinitely appear from the description to follow. The invention isdefined in the claims.

A structure which embodies the features of my improvements is clearlyillustrated in the accompanying drawing, in which:

Fig. 1 is a fragmentary perspective view of a paper cutting machineembodying the features of my invention.

Fig. 2 is a fragmentary plan view of the cutting table with myimprovements in operative relation thereto.

Fig. 3 is a detail view mainly in vertical section on a line 33 of Figs.1 and 2.

Fig. 4 is a detail section corresponding to that of Fig. 3 with thegauge bar in actuated position.

Fig. 5 is a detail view mainly in section on line 55 of Figs. 1 and 2.

Referring to the drawing, 1 represents the frame of the machine in whichthe cutterhead 2 is mounted for vertical reciprocating movement. Thedetails of the actuating mechanism for the cutterhead are not describedherein as they form no part of this invention.

The table 3 extends to one side of the frame 1 to support the sheets inoperative relation to the cutter, a body of sheets being conventionallyshown at 4. The table has a longitudinal slot 5 in which the cuttergauge 6 is adjustably mounted, this gauge being disposed in parallelrelation to the cutter 7.

At the side of the table I mount a support 8 having an angled face, thehorizontal portion 9 of which is flush with the surface of the table 3.On this support I mount a gauge bar 10 for sliding adjustment. The gaugebar is slidable on the support and on the face of the table and isfurther supported by the rod-like slides 11 which are arranged in pairsand connected by the cross pieces 13. These Serial No. 289,651.

cross pieces are connected by the longitudinal rod 14.

An actuating lever 15 is pivoted at 16 and is of the bell crank type.The arm 17 of the lever has a slot 18 therein through which the rod 1%is disposed.

On the bracket 19 carried by the support 8 I mount a cylinder 20. Thepiston 21 is connected by the pitman or connecting rod 22 with the arm23 of the lever 15 so that as the piston is forced downwardly the gaugeis actuated.

In the embodiment illustrated the gauge is returned to its initialposition by the coiled springs 24 which are disposed between the crosspieces 13 and the support, the cross pieces being provided with studs 25and the supports with corresponding studs 26 with which the ends of thesprings are engaged, thereby retaining the springs in position.

The cylinder is connected to a suitable source of air supply underpressure by the conduit 27. The control valve is not illustrated.

I have illustrated and described my improvements in a simple andpractical embodiment. I have not attempted to illustrate or describecertain modifications or adaptations which I contemplate as it isbelieved this disclosure will enable those skilled in the art to embodyor adapt my improvements as may be desired.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is:

1. In a structure of the class described including a cutter and a tableoperatively associated therewith, the combination of a gauge supportmounted at the side of the table and having an angled face, thehorizontal portion of which is disposed in a plane flush with thesurface of the table, a gauge bar slidably mounted on said support,pairs of adjusting rods for said gauge bars slidable in said support,cross pieces connecting the outer ends of said rods, a longitudinal rodconnecting said cross pieces, a bell crank actuating lever pivoted onsaid support, one arm of which is slotted to engage said rod, a cylindermounted on said support, a coacting plunger provided with a connectingrod connected to the other arm of said lever, and return springs forsaid gauge bar disposed between said cross pieces on said adjusting rodsand said support.

2. In a structure of the class described including a cutter and a tableoperatively associated therewith, the combination of a gauge supportmounted at the side of the table and having an angled face, thehorizontal portion of which is disposed in a plane flush with thesurface of the table, a gauge bar slidably mounted on said support,pairs of adjusting I rods forsaid gauge bars slidable in said support,cross pieces connecting the outer ends of sald rods, a longltudinal rodconnecting said cross pieces, a bell crank actuating lever pivoted onsaid support, one arm of which is slotted to engage said rod, a cylindermounted on said support, and a coacting plunger provided with aconnecting rod connected to the other arm of said lever.

v3. In a structure ofthe class described in eluding a cutter and a tableoperatively associated therewith, the combination of a gauge supportmounted at the side of the table, a gauge bar slidably mounted on saidsupport, pairs of adjusting rods for said gauge bars slidable in saidsupport, cross pieces connecting the outer ends of said rods, alongitudinal rod connecting said cross pieces, and a bell crankactuating lever pivoted on said support, one arm of which is slotted toengage said rod.

4. In a structure of the class described, the combination of a table, agauge support mounted at the side of the table, a gauge bar slidablymounted on said support, gauge bar slides disposed at the ends of saidsupport, a bar connecting the outer ends of said slides, a bell cranklever one arm of which is operatively connected to said connecting bar,a cylinder and coacting piston, and a connecting rod for said piston tothe other arm of said lever.

5. In a structure of the class described, the combination of a table, agauge bar, supporting slides at the ends of said gauge bar, a connectingbar for said slides, an actuating lever operatively associated with saidconnecting bar, a cylinder and a coacting plunger operatively connectedto said lever.

In witness whereof I have hereunto set my hand.

' CLARENCE O. THORNE.

